EP 2769975 B1 20170531 - BENZOXAZINE INTERMEDIATE AND PREPARATION METHOD THEREOF
Title (en)
BENZOXAZINE INTERMEDIATE AND PREPARATION METHOD THEREOF
Title (de)
BENZOXAZINZWISCHENPRODUKT UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
INTERMÉDIAIRE DE BENZOXAZINE ET SON PROCÉDÉ DE PRÉPARATION
Publication
Application
Priority
CN 2011080950 W 20111018
Abstract (en)
[origin: US2014206864A1] The present invention relates to a benzoxazine intermediate and a preparation method thereof. The structural formula of the benzoxazine intermediate is shown by formula (1), R1 in formula represents o, C═O, S, SO2, alicyclic hydrocarbon with 3 to 30 carbon atoms and derivatives thereof, aliphatic hydrocarbon with 1 to 20 carbon atoms and derivatives thereof, or unsaturated aliphatic hydrocarbon with 2 to 20 carbon atoms and derivatives thereof; R2 is alicyclic hydrocarbon with 3 to 20 carbon atoms and derivatives thereof, aliphatic hydrocarbon with 1 to 20 carbon atoms and derivatives thereof, or unsaturated aliphatic hydrocarbon with 2 to 20 carbon atoms and derivatives thereof. The benzoxazine intermediate of the present invention contains a naphthalene ring structure segment, has desirable heat resistance performance and flame retarding performance, and can be widely applied in composite materials.
IPC 8 full level
C07D 265/12 (2006.01)
CPC (source: EP KR US)
C07D 265/04 (2013.01 - KR); C07D 265/12 (2013.01 - EP KR US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2014206864 A1 20140724; US 9062011 B2 20150623; EP 2769975 A1 20140827; EP 2769975 A4 20150415; EP 2769975 B1 20170531; KR 101579387 B1 20151221; KR 20140067006 A 20140603; WO 2013056428 A1 20130425
DOCDB simple family (application)
US 201114235374 A 20111018; CN 2011080950 W 20111018; EP 11874158 A 20111018; KR 20147004405 A 20111018